Attachment for printing-presses.



PATENTBD 001B. 6, 1903.

I s e. Gross. ATTACHMENT FOR PRINTING PRESSES.

j APPLICATION FILED APR. 16. 1900. V

2 SHEETS-SHEET 2 N0 MODEL.

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SAMUEL G, GOSS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GOSS PRINTINGPatented October 6, 1903.

PATENT OFFICE.

PRESS COMPANY, CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ATTACHMENT FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 740,552, dated October6, 19.03.

Application filed April 16, 1900. Serial No. 13,059. {1N0 model.)

provements in Attachments for Printing- Presses, of which the followingis a specification, reference being had to the accompany-- ing drawings.

My invention relates to perfecting-presses,

and has for its object to provide improved means for handling the shaftson which the webs are carried. In perfecting=presses it has been thepractice to provide the frame of the press with an extended support atthe end at which the web is fed into the press capable. of supportinganextra roll beside and paral-' lel with the roll on which the printing isbeing done, the object being to expedite the substitution of a freshroll for an exhausted one and delay the printing as little as possible.In use the roll nearest the printing mechanism is first used, and whenexhausted it is removed and the extra roll put in its place:

The shafts upon which the rolls are mounted are quite heavy and aresomewhat difficult to handle, and heretofore it has been necessary toremove them by hand, so that not only were several men required toremove the shaft, with the empty roll carried by it, but considerabletime was required for the operation.

My invention has for its object to overcome the objections incident tothe former practice; and it consists in providing. mechanism by whichthe shaft, withthe exhausted roll, may be quickly and easily removed.

Myinvention also includes certain details of construction which will behereinafter pointed out. In the drawings, Figure I is a side elevation.Fig. 2 is a plan view; and Fig.3.is a detail, some parts being insection.

Referring'to the drawings, 4 indicates the frame of the machine, whichis adapted to be secured to the end of the press, having horizontal arms5 6 7 for that purpose. The upper end of the frame 4 is bifurcated, asshown in Fig. 1, forming arms 8 9. There are also arms 10 11 12,projecting oppositely to the arms 5 6 7. The arms 1O 11 12 are braced bybraces 13 14 15', respectively, as-shown. The

arms 10 11 12 are each provided with bearings 16 17 at their inner andouter ends, respectively, each adapted to receivea roll-shaft 18. Thebearings 16 17 are best shown on arm 12 in Fig. 1. Clips 19 are providedfor holding the shafts in the bearings 16 17. Each of the roll-shafts 18is provided at one end with a tension-cylinder 20, which when the shaftis in position lies outside of the arms upon which it is supported, asshown in Fig.

2. The tension-cylinder is adapted to be embraced by tension-straps 2122, which are semicylindrical in shape and are adapted to fit closelyupon said cylinders, as shown in the drawings. The tension-straps arepivoted to the arms upon which they are respectively carried, and theirfree ends are adjustably secured together by pivoted bolts 23 and nuts24, as shown in Fig. 1, so that the tension upon the cylinders may beaccurately regulated. Y

25 indicates adjusting-screws for adjusting the 'roll s haftslongitudinally. This, how

ever, forms no part of my present invention and need not be furtherdescribed.

26 indicates endless chains, a pair of which is provided for each of thearms 10 11 12, one of said chains being mounted on sprocketwheels 27 2829, provided at each side of the frame 4. Such sprocket-wheels aremounted on studs 30 31 and a shaft 32, as shown in Fig. 2, a pair ofstuds 30 '31 being provided at each side of the frame of the machine,the shaft 32 extending entirely across the frame of the machine andhaving a sprocket-wheel at each end thereof, as shown in Fig. 2. 'Bythis construction the pair of chains 26 ap propriated to each of thearms 10 ll 12 lie inside and adjacent to the sides of the frame. Thesprocket-wheels 29 of eachset are placed near the bearings 16 of each ofthe arms 10 11 12, so that the chains 26 extend down in number ofperforations 36, provided in the chains operated by it, into position toreceive the roll-shaft of the exhausted roll. By then rotating the crankin the direction indicated by the arrow in Fig. 1 the chains travel inthe direction indicated in Fig. 1, carrying the exhausted roll, \i' ithits shaft, upward and outward. This may be continued until the roll iscarried to the extreme ends of the arms 10, 11, or 12, as indicated atthe top in Fig. 1. The roll will then clear the fresh roll supported atthe ends of the arms 10, 11, or 12, so that the Web from such roll maybe used eitherin its original position or after first moving it to theinner ends of the arms upon which it is supported. The exhausted roll,with its shaft, may afterward be removed at convenience withoutinterfering with the operation of the press. When the exhausted roll ismoved to the desired point, the crank is locked in position by means ofthe locking-pin 35.

It will be understood that instead of chains other equivalent devicesmay be employed,

and various other modifications may be.

made Without departing from the spirit of my invention.

That which I claim as my invention, and desire to secure by LettersPatent, is-

1. In a printing-press attachment, the combination of a frame,roll-supporting devices carried thereby, and roll-lifting mechanism 0)nsisting of endless-belt mechanism having devices adapted to engage theroll-shafts to lift and remove said roll shafts, substantially asdescribed.

2. In a printing-pressattachment, the combination of a frame,roll-supporting arms as 10 carried thereby, endless chains carried bysaid frame, suitable rotary supports for said chains, said supportsbeing arranged to carry said chains in an inclined position over saidroll-supporting arms, devices carried by said chains adapted to engagethe roll-shafts, and

means whereby said chains may be caused to travel, substantially asdescribed.

3. In a printing-press attachment, the combination ofa frame,roll-supporting arms as 10 carried thereby,triangularly arranged chains26 carried by said frame, suitable rotary supports for said chains,devices carried by said chains adapted to engage the roll-shafts, andmeans whereby said chains maybe caused to travel, substantially asdescribed.

4. In a printing-press attachment, the combination of a frame, arms as10 carried thereby, said arms being adapted to support a rollshaft,sprocket-wheels 27 28 29 carried by said frame, the sprocket-Wheels oneach side of the supporting-frame being triangularly arranged, chainsmounted on said sprocketwheels, means for moving said chains, anddevices carried by said chains adapted to engage the rollshafts,substantially as described.

5. In aprinting-press attachment, the combination of a frame,roll-supporting devices carried thereby and endless-belt liftingmechanism carried by said frame and extending upwardly and outwardlyover the roll-supporting devices, substantiallyas described.

- SAMUEL G. GOSS.

Witnesses:

JOHN L. JACKSON, HARRY O..MONSON.

